1974-75 Gerl 5p booklet pane "miscut one row"

1974-75 Gerl 5p booklet pane ex 40p pink booklet, miscut one row. The stamps in the pane are perforated on the outer edges and vertically imperf between; also, the label is to the right of the bottom stamp as opposed to the left. A spectacular error of which only 4 examples have been discovered. Accompanied by the 1p and 2p panes from the original exploded booklet.
With clear BPP certificate (2000) SG 295ada, Hib. D60b, D60c.